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, plants of this species were grown in PIP and AGP and irrigated with fresh and saline water. The following points were studied: 1) substrate temperature and leachate EC and pH; 2) growth and development of the plant and any salt damage; and 3) pore water

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rack of 12 twigs per cultivar. Vials were filled with Floralife Crystal Clear (Floralife Inc., Walterboro, SC) at double strength (2× = 32 mL/L water; pH = 2.78; soluble solids = 1.4%). Crystal Clear contains no hormones and did not affect rate of

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was also suspected that phytotoxicity was associated with the low pH of ABA solutions, which varied from pH = 2.8 for 3200 mg·L −1 to pH = 3.8 for 200 mg·L −1 . However, buffered ABA solutions to neutral pH led to more injury at equal concentration

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186001344; Milford, MA) with an isocratic elution using a phosphate buffer (200 m m ; pH 2.4) as the mobile phase. Ascorbic acid quantification was estimated at 244 nm using calibration curves made with an ascorbic acid standard (Sigma-Aldrich, St. Louis, MO

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, NC). The organic compost had average properties of 6.9 pH, 2.91 mS·cm −1 electric conductivity, and a carbon to nitrogen ratio of 10.9:1. Estimated available nutrients for the crop are 0.6% N, 0.03% phosphorus (P), 0.2% K, 10.3% calcium (Ca), 0

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dihydrogen phosphate (H 2 PO 4 − ) and then to hydrogen phosphate (HPO 4 2− ) occurs at pH 2.1 and 7.2, respectively ( Schachtman et al., 1998 ). Plants can only absorb P as the free orthophosphate ions H 2 PO 4 − and HPO 4 2− ( Becquer et al., 2014

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1 and PH2), year, and GDD 45, 60, 90, and 120 DAFB as variables indicated that only GDD 60 DAFB explained significant variation (41%) in diffuse flesh browning. Further ANOVA using GDD 50, 55, 65, and 75 DAFB as variables resulted in 19% of the

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rate of 0.5 mL·min −1 with absorbance measured at 254 nm. Sample injection volume was 5 µL, each with duplicate HPLC injections. Mobile phase was buffered potassium phosphate monobasic (KH 2 PO 4 , 0.5%, w/v) at pH 2.5 with metaphosphoric acid (HPO 3

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phase of acids was KH 2 PO 4 (18 m m , pH 2.1) and flowed at a rate of 0.8 mL⋅min −1 . Sugar and acid amounts were determined using peak areas with external standards (fructose, glucose, sucrose, tartaric acid, malic acid, and citric acid) and expressed

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mixture (4000 g n × 10 min), the aqueous phase was separated and adjusted to pH 2.8 with 1 m acetic acid and partitioned against 100% ethyl acetate. After being spun down at 16,000 g n for 2 min, the upper organic phase was recovered and completely

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